Pipe crimping device



Oct. 27, 1931. H. E. PA'r'roN PIPE CRIMPING DEVICE Filed March 18. 1930 2 Sheets-Sheet l Ind Ima/tot /palfon www attain,

Oct. 27, 1931. H, E PATTON 1,829,012

PIPE CRIuPING DEVICE Filed March 18, 1930 2 Sheets-Sheet 2 Patented oct. 27, 1931 PATENr OFFICE y HERSC'HEL E. PATTON',V 0F GRANGEVILLE, IDAHO PIPE CRIMPKING DEVICE Application led March 18, 1930. Serial No. 436,856.

This invention relates to crimping devices and more particularly to a crimping device aapted for use in crimping of pipe or the li e.V

` An object of this invention is to provide a pipe crimping device of this character by meansfof which. the free ends of a section of metal may be securelyfastened together.l

Another object of this invention is to provide a simple device wherein a section of pipe is adaptedto be inserted, the metal having the freev ends thereof partially turned over or bent, the device being adapted to securely press the freev ends together so as to form a cylindricalV elongated pipe section of any desired length. A further object of this invention is to prof vide in a device of this character, tensioning means by whichthe tension upon the crimpling barmay be varied to suit the particular` gauge of metal which is being formedinto a pipe sec-tion..

A still further object of this invention is toprovide aA device of this character which maybe manually operated but which is so constructed that the pipe section will be securely crimped with one operation of the device. i I

The abovey and various other objectsl and advantages of this invention will in part be described 'and in part be understood from the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawings wherein 1 Figure 1 ris a fragmentary detail side ele- -vation'of a device constructed according to p the preferred embodiment of this invention;

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Figure 2 is a sectional view taken on the line 22 of Figure 1; i

`Figure 3'is' a vertical section partlyin detail taken substantially through the center of the device; and f l Figure 4 is a vertical section taken on the line 4 4: of Figurel.- I

. Referring to the drawings wherein like numerals of reference designate correspondmg parts throughout the several views, the

numeral designates? generally a base of' suitable dimensions which may be constructed of any desired material such as wood, metal or the like and is preferably'provided with a air of end members 11 and a pair of spaced side members `12 which are provided with cut out end portions for countersinking the ends of the side members in recesses 13 in the end members 11.

The opposite ends of the side members 12V may be bolted as by bolts 14 or the like to the end members 11 although, if desired, the base 10 may be cast in a single unit or formed of concrete or any other' suitable material.

A bed 15 is mounted upon the base 10, the bed 15 comprising a substantially rigid construction and is preferably constructed of metal and may be secured to the base 10 by means of bolts 16 or the like.r The bed 15 is preferably provided with ak longitudinally disposed slot or recess 17` which Yextends downwardly therethrough for purposes which will be hereinafter described.

Acvertically disposed standard or support ing member generally designated as 18 is mounted upon the base 10 adjacent one end thereof,'the standard 18 comprising a pair ofvertically positioned supports 19 which are boltedror otherwise secured to the base l0 by bolts 2O or the like intermediate the side kmembers 12, and the vertically disposed supports 19 are preferably lpositioned upon the opposite sides of the crimping bed 15. k v

A transversely disposed bar or member 21 is secin'ed to the vertical supports 19 adjacent the upper end portion thereof byfmeans of bolts 22 or the like. l Astationaryor fixed crimping member 23v is secured at the lower end by means of bolts or securing members 24 vto the crimping bed 15, and the lower end portion of the fixed crimping member 23 is preferably positioned within the elongated slot 17. The fixed crimping member 23 is also secured to the vertical supports 19 by means of bolts 25 which are positioned in the fixed crimping member 23 at a point spaced downwardly from the upper end portion thereof, the bolts 25 extending horizontally through the vertically disposed crimping member 23 and being` preferably positioned in the transverse member 21.

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A movable or swinging crimping bar 26 is slidably positioned at the lower end thereof within the slot 17, the lower end portion of the swinging crimping member 26 being preferably restricted as at 27 so as to provide a flange or ledge 28 which is adapted to slidably engage the 'upper face portion of the crimping bed 15. i f

A .resilient or tensioning member 29 is mounted in the bed l being positioned at one end in a socket or recess 30 and is adapted to engage the lower restricted end portion 27 of the swinging crimping member 26 so as to constantly urge the lower end portion thereof toward the fixed or stationary crimping member 23.

l'ff desired, suitable adjustable means may be provided for the tensioning member 29 so tliattlie tension on the crimping member may be varied to suit'the particuli-ir purposes or to meet the varying conditions due to the fact that pipe sections of different gauges of metal are being' crimped or secured together.

The inner face of the fixed crimping member is provided with a concave or grooved portion 3l., and the inner face of the movable crimping member 26 is preferably convex as-at 32 so as to register with the concave portion 31 in the fixed crimping member 23, the concave portion 3l and the convex portion 32 being formed on an arc or segment of a circle approximately the circumference VVof the section pipe.

`The inner face of the movable crimping member 26 in addition to being convex as at 32, is also eccentric'aily formed as at 33 so that when the lower end portion of the movable crimping member is in contactwith the lower end portion of the fixed crimping member, the upper end portion of the movable crimping member will be positioned in spaced relation to the upper end portion of the fixed crimping member. y

A pair of swingingly mounted link members 34 are secured at one end to the opposite sides of the fixed crimping member 23 adjacent the upper end port-ion thereof by means cfa pivotal boit 35 or the like, and tint upper end portion of the stationary7 crimping member 23 is preferably restricted as at 36 so that the swinging movement of the linkmembers will be limited, the outstanding portion 'of the fixed crimpinO4 member serving the purpose of a stop or restricting member for limiting` the swinging movement of the links 34. A lever generally designated as 37 is swingingly mounted between the link members 34 by means of a pivotal bolt 38, the outer end portion of the lever 34 being formed into handle 39and the inner end'portion of the -lever 3i' being formed as an eccentric 40.

rllhe movable crimpingmember 26 is also provided with a stop or link limiting portion 4l adjacent the upper end portion thereof so that when the links 34 swing downwardly and upon the opposite sides of the movable crimping member 26, the links will be limited in their downward swinging movement.

The eccentric portion 40 of the lever 37 is adapted to engage the outer edge portion of the movable crimping member 26 and when the handle 39 is pulled downwardly, the movable crimping member will be forced inwardly against the fixed clamping member 23, the movement of the movable crimping member being iii the nature of a rocking movement due to the ecc intric construction of the movable member 2G on the inner edge portion thereof. The lower end portion of the'movable member 26 may be provi-ded with a slot 44 therethrough, and a bolt or the like 45 may be mounted in the bed l5 and loosely engage in the slot 44 for retaining the movable member in the bed.

In the operation of'this device, thelever 37 is preferably swung upwardly so as to permit the swinging crimping member 26 tol be free, it of course being understood thatv the upper end portion of the crimpingmember 26 is free, whereupon a pipe section 42 is positioned between the fixedl member 23 and the movable member 26, the jointzof the pipe being positioned within the concave portion 3l of the fixed member 23.

1t will of course be understood that prior to the insertion of the pipe section 42 vbetween the crimping members 23 and26, tliefree ends or edges of the' pipeV section are initially bent or reverted as at 43, andthe bent-edges of the pipe section are loosely hooked together.

When the pipe section 42 is positioned between the crimping members 23 and 26, the lever 37 may be swung downwardly. so that the eccentric portionf40 willengage` against the outer edge portion of the movable crimping member whereupon' theVV lever may be pressed or swung downwardly so as to'force the movable crimping meinber'26 into contact with the inner periphery of the pipe section, the movement of the `swinging meniber 26 firmly pressing the reverted endsV 43 of the pipe together so that the edges ofthe pipe will be firmly secured together.

It will of course be understood that various changes and modifications may be made inthe details of construction and design of the above specifically described embodiment of the inventionwithoutdeparting'from the spirit thereof, such changes and modifications being restricted only by the scope of the following claim. Y

lVhat is claimed is A crimping device ofthe character described comprising a base, a fixed crimping member mounted on the base, said fixed member having a concaveinner edgev portion, a roekable crimping member, said rockable membery having a horizontallydisposed slot in the lower end thereof, said rockable crimping member having a convex eccentric inner edge portion whereb to rockably clamp an annular article wit in the concave inner edge portion of said fixed member, resilient means engaging the lower end of said rockable member whereby to constantly urge the lower end toward said fixed member, and an eccentric lever Swingingly carried by said fixed member and adapted for engagement with said roclrable member whereby to position said rockable member against said fixed member.

In testimony whereof I hereunto afix my signature.

HERSCHEL E. PATTON. 

